ELES allocates Cross-Zonal Transmission Capacities (CZC) at explicit and implicit auctions and on the principle of the continuous allocation. Yearly auctions take place annually, monthly are carried out once a month. Daily Auctions and Intraday allocation takes place every day of the week. The allocation is carried out in accordance with the applicable rules of allocation.

Explicit auctions are auctions at which participants give their offers in order to obtain access to CZC. The marginal CZC price is calculated at the end of the auction. If the demand for CZC is less than the offered quantity, the CZC price is equal to zero.

Implicit auctions mean an upgrade of the explicit CZC allocation since it allocates simultaneously CZC and electricity. Such auctions are executed by power exchanges and the system operators announce the quantities of available CZCs representing the trading limitation between two neighboring bidding zones.

Market coupling represents one of the methods for congestion management. It represents an implicit allocation of cross-border transmission capacities (CZCs) where CZCs are, together with energy bids, input parameter for the optimization algorithm between at least two neighboring bidding zones among which the congestion occurs.

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